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Microsoft Security Response CenterCVE-2026-34445

ONNX: Malicious ONNX models can crash servers by exploiting unprotected object settings.

HighVendor CVSS 8.6 / 10 1 CVE Published Apr 9, 2026 at 1:02 AM UTC

Summary

Mariner

Products covered

  • azl3 pytorch 2.2.2-12 on Azure Linux 3.0

  • cbl2 pytorch 2.0.0-15 on CBL-Mariner 2.0

  • cbl2 pytorch 2.0.0-15 on CBL Mariner 2.0

Remediation

CBL-Mariner Releases Release Notes

Vendor-listed fixes

  • 2.2.2-14

CVEs in this advisory 1

Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added affected products: cbl2 pytorch 2.0.0-15 on CBL-Mariner 2.0.
    • The vendor changed its remediation guidance.

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.